单词：steady-state sound pressure level
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How to deal with peer pressure? College students are often obsessed by peer pressure from their classmates or schoolmates. Facing others hard work and good performance in academic and other aspects, many students feel great pressure. Then, how to dea
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On airplanes, cabin pressure changes during takeoff and landing to help passengers breathe easy at high altitudes. These changes in air pressure may make adults ears feel a little funny, prompting a few yawns to equalize the pressure. But for babies,
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Why Can We Hear the Sound of the Ocean in a Shell? 贝壳传来海洋之音？ Most children have probably wondered at the noise of roaring ocean waves magically captured inside seashells held up to their ears. According to popular belief, anyone luc
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Laos Faces Pressure to Alter Hydropower Ambitions Laos plans to build a hydropower dam on the lower Mekong River, but neighboring countries say more study is needed. Analysts say the high-level opposition puts pressure on Laos to alter its hydropower
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